When it comes to commitment and effort, nobody came close to Katy Perry this year. The 31-year-old "Dark Horse" singer had jaws dropping in a lush, multi-colored velvet Prada gown, featuring a sexy open back and a dramatic train.

Getty Images

Getty Images

But it's the obvious attention to detail that makes her ensemble so special. Perry's dress featured everyone's favorite '90s toy, the Tamagotchi -- giving a cute nod to the year's technology theme -- and the fingerless black leather gloves only enhanced her edgy vibe. Bleached eyebrows and moody black lipstick were also a perfect complement to her show-stopping look.